aSc TimeTables - Constraints - ClassroomsThis article is available in:
Concentrate groups of lessons into fewer classrooms
For example the have 3 laboratories and Biology and Chemistry lesson2 can be in any of these. You can add this constaint that will specify that only 2 of these 3 laboratoris can be used on each day, for example to reduce cleaning costs:
Of course the above is more or less equivalent to removing one Lab from the school. But if you generate with relaxation allowed the above has two advantages:
1. if depending on other constraint it is not possible to use just 2 rooms, the software will relax this and use 3. If other constraints permit this, it will use 2.
2. more imporantly the relaxation works per days, this may produce a timetable where on most days you will use just 2 labs and only on a few days it will be necessary to use and clean all 3 labs.
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